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## org.bouncycastle.crypto.prng.drbg
Class DualECPoints

    java.lang.Object
      org.bouncycastle.crypto.prng.drbg.DualECPoints

public class DualECPoints
extends java.lang.Object

General class for providing point pairs for use with DualEC DRBG. See NIST SP 800-90A for further details.

Constructor Summary
`DualECPoints(int securityStrength, ECPoint p, ECPoint q, int cofactor)` Base Constructor.

Method Summary
`int` | `getCofactor()`
`int` | `getMaxOutlen()`
`ECPoint` | `getP()`
`ECPoint` | `getQ()`
`int` | `getSecurityStrength()`
`int` | `getSeedLen()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### DualECPoints

    public DualECPoints(int securityStrength,
                        ECPoint p,
                        ECPoint q,
                        int cofactor)

  Base Constructor.

  The cofactor is used to calculate the output block length (maxOutlen) according to max_outlen = largest multiple of 8 less than ((field size in bits) - (13 + log2(cofactor))

Parameters:
  `securityStrength` - maximum security strength to be associated with these parameters
  `p` - the P point.
  `q` - the Q point.
  `cofactor` - cofactor associated with the domain parameters for the point generation.

Method Detail

### getSeedLen

    public int getSeedLen()

### getMaxOutlen

    public int getMaxOutlen()

### getP

    public ECPoint getP()

### getQ

    public ECPoint getQ()

### getSecurityStrength

    public int getSecurityStrength()

### getCofactor

    public int getCofactor()

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